Table 6.

Comparison of similar studies that focused on the global COVID-19 vaccination campaign, challenges, development, distribution, country wise progress, knowledge, and people’s perception

Reference	Article type	Outcome	Study Period
Huang et al.21	Mini-Review	Emphasis on the global COVID-19 vaccine development with available data.	May 2021
Buchy et al.22	Review	Focused on the human experience in handling earlier pandemics and COVID-19 vaccine development measures.	April 2021
ElBagoury et al.23	Full Review	Describes the preventive precautions taken to flatten the COVID-19 curve, as well as the challenges and potential for vaccine development.	August 2020
Calina et al.24	Review	Effective COVID-19 vaccination should be regarded key public health goals to create an effective vaccine, as well as initiatives to deploy immune-enhancing strategic treatments and short-term activities.	April 2020
Kashte et al.25	Review	Reviewed different types of vaccinations with examples of COVID-19 vaccines, their quick development compared to traditional vaccines. Also, established that, to avoid severe adverse outcomes, pre-clinical trials must be conducted with caution.	February 2021
Le et al.13	News Analysis	This study found that vaccinations could be available under emergency use or comparable protocols by early 2021, based on worldwide vaccine R&D efforts and quick changes in the vaccine development process.	April 2020
Islam et al.19	Research	A community-based cross-sectional study in Bangladesh that focused on the public’s perception of the COVID-19 immunization campaign. However, the study shows that the general population in Bangladesh has inadequate knowledge but positive sentiments regarding the COVID-19 vaccine.	March 2021